胶州湾东岸滩涂环境的遥感监测

USING REMOTE SENSING IMAGES TO MONITOR THE BEACH ENVIRONMENT IN EAST COAST OF JIAOZHOU BAY

利用低潮位陆地卫星TM影像对胶州湾东岸碱厂白水分布与扩散进行监测。对研究区的子区影像在ENVI中进行增强、变换处理,提取白水、白泥分布与扩散信息,制作大比例尺影像地图,在GIS软件中计算其面积。结合实地验证和历史数据,分析表明,该污染源10多年来面积扩大了4倍。

By interpreting the Landsat TM image during low tide level, the distribution and diffusion of white-water from Alkaline Factory on east coast of the Jiaozhou Bay was monitored. The image of study area was enhanced and transformed by using ENVI software, and the distribution and diffusion information of white-water and white-silt were extracted. Supplied by GIS software, these pieces of information were presented in an special image map with large scale, and their areas were also calculated. Comparing with historical data, it showed this pollution source enlarged to approximately 4 times in area in the latest decade.